You can start a discussion here on the Google+ group or start a thread on the CompressiveSensing subreddit. As you may have noticed, I am being generous about giving +1s (Google+) or upvotes (Reddit). These communities will only grow if positive reinforcement is used by all.

Talking about upvotes, looking back at the last 100 entries, here are the ones that obtained the most Google +1s are: